Air quality index [µg/m3]:
excellent ≤ 20
good ≤ 60
lightly polluted ≤ 100
moderately polluted ≤ 140
heavily polluted ≤ 200
severely polluted > 200
PM 2.5
[µg/m3]
PM 10
HOUR OPOLSKA ST. ROOF (BEFORE FILTERS)  AIR SUPPLIED TO OFFICES
05006excellentexcellent11excellent
040014excellentexcellent21excellent
030035goodexcellent51excellent
020049goodexcellent81excellent
010053goodexcellent81excellent
000069lightly pollutedexcellent51excellent
230072lightly pollutedexcellent41excellent
220072lightly pollutedexcellent31excellent
210021goodexcellent31excellent
200020excellentexcellent31excellent
190033goodexcellent41excellent
180020excellentexcellent41excellent
170018excellentexcellent31excellent
160011excellentexcellent21excellent
15009excellentexcellent11excellent
14005excellentexcellent11excellent
13006excellentexcellent11excellent
12004excellentexcellent11excellent
11004excellentexcellent11excellent
10005excellentexcellent11excellent
09009excellentexcellent11excellent
080023goodexcellent21excellent
070021goodexcellent11excellent
060018excellentexcellent11excellent